Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
148,646 days
From Sunday, September 15, 1619 to Monday, September 7, 2026.
Monday–Friday weekdays106,176
Weeks and days21,235w 1d
Calendar span406 years, 11 months, 23 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.